Tension degree adjusting device for scraper chain of embedded scraper conveyer

Abstract

The utility model provides an embedded scraper conveyor scraper chain tension degree adjusting device which is arranged on one side of the top of a conveyor base box and comprises a U-shaped frame, an electric push rod and a compression roller. The bottom of the U-shaped frame is provided with an edge mounting plate, the edge mounting plate is fixedly connected with a box body of the conveyor base box through bolts, the top of the U-shaped frame is provided with a top plate, the middle of the top plate is provided with a semicircular clamping groove used for containing the electric push rod, a cylinder body of the electric push rod is fixedly provided with an annular plate, and the annular plate is connected with the top plate through bolts. The extending end of the electric push rod is connected with a connecting plate through a bolt, and a pressing roller is movably connected below the connecting plate through a transverse frame. The tensioning degree adjusting device is installed on the upper portion of the conveyor base box of the embedded scraper conveyor, the adjusting device drives the pressing roller to adjust the tensioning degree of the scraper chain through the electric push rod, manual labor is reduced, and the tensioning degree adjusting efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of conveyor technology, and specifically relates to a tension adjustment device for scraper chain of a buried scraper conveyor. Background Technology

[0002] A scraper conveyor is a device that continuously transports bulk materials within a closed rectangular cross-section casing using a moving scraper chain. This type of conveyor transports materials through friction between the scrapers on the chain and the bulk material, and is suitable for horizontal, inclined, or vertical conveying of powdery, granular, and small lump materials.

[0003] When adjusting the tension of the scraper chain in existing buried scraper conveyors, it is usually necessary to remove the sprocket at one end of the scraper chain, and then use the sprocket to pull the scraper chain outward at the adjustment groove of the conveyor base to adjust the tension of the buried scraper chain. After adjustment, the sprocket needs to be fixed again, making the tension adjustment of the buried scraper conveyor quite cumbersome. Utility Model Content

[0004] To address the cumbersome operation involved in adjusting the tension of the scraper chain in a buried scraper conveyor, this invention provides a scraper chain tension adjustment device for buried scraper conveyors, which greatly improves the ease of adjusting the scraper chain tension.

[0005] The utility model is realized through the following technical solutions:

[0006] A scraper chain tension adjustment device for a buried scraper conveyor is installed on one side of the top of the conveyor base box, including a U-shaped frame, an electric push rod, and a pressure roller; the electric push rod is controlled by an external power source.

[0007] The bottom of the U-shaped frame is provided with a side mounting plate, which is fixedly connected to the body of the conveyor seat box by bolts; the top of the U-shaped frame is provided with a top plate, and a semi-circular slot in the middle of the top plate is provided for placing the electric push rod.

[0008] An annular plate is fixedly mounted on the cylinder of the electric actuator, and the annular plate is connected to the top plate by bolts; a connecting plate is bolted to the extended end of the electric actuator, and a pressure roller is movably connected to the lower part of the connecting plate by a crossbeam.

[0009] The surface of the pressure roller is provided with a rubber sleeve.

[0010] The working principle of this utility model is as follows:

[0011] After selecting an appropriate position for the conveyor housing, the U-shaped frame is fixed with bolts. The position of the U-shaped frame can be adjusted as needed. When the tension of the buried scraper chain inside the conveyor housing needs to be adjusted, the extension end of the electric push rod is extended by external power control, thereby pushing the connecting plate to press down on the cross frame. The pressure roller set below the cross frame presses against the buried scraper chain. After the rubber sleeve on the surface of the pressure roller contacts the buried scraper chain, the buried scraper chain between the sprockets can be subjected to downward pressure, thereby pressing the buried scraper chain downward. Then, the extension end of the electric push rod is retracted by external power control to pull the pressure roller upward. After the buried scraper chain loses the pressure applied by the pressure roller, it relaxes, thereby realizing the tension adjustment of the buried scraper chain inside the buried scraper conveyor.

[0012] As a further improvement of this utility model, one end of the connecting plate is provided with a vertical rotating hole, which is fixedly connected to the protruding end of the electric push rod by bolts; a horizontal frame is provided at the bottom of the end of the connecting plate away from the vertical rotating hole, a fixed ring frame is fixedly connected to one end of the horizontal frame, and a moving ring frame is connected to the other end by bolts, and a pressure roller is sleeved between the fixed ring frame and the moving ring frame.

[0013] The connecting plate is connected to the electric actuator by bolts. When the pressure roller needs to be replaced, only the connecting plate needs to be removed. The two ends of the pressure roller are connected by a fixed ring frame and a moving ring frame. When the pressure roller is worn and needs to be removed, the bolts can be unscrewed and the moving ring frame can be removed to take out the pressure roller, which is convenient and quick.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model improves the efficiency of tension adjustment by installing a tension adjustment device on the upper part of the conveyor seat of the buried scraper conveyor. The adjustment device drives the pressure roller through an electric push rod to adjust the tension of the scraper chain, which reduces manual labor and greatly improves the efficiency of tension adjustment.

[0016] 2. The tension adjustment device of this utility model can be adjusted to any position as needed. It only requires connecting the U-shaped frame to the conveyor base box with bolts, which is easy to operate.

[0017] 3. The pressure roller of this utility model is installed under the connecting plate after being connected by a fixed ring frame and a moving ring frame. When it needs to be replaced, it can be taken out simply by removing the moving ring frame, which is convenient and quick. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection structure between the adjustment device and the conveyor base box of this utility model.

[0019] Figure 2 This is a schematic diagram of the disassembled structure of the adjustment device of this utility model.

[0020] Reference numerals: 1-Conveyor base box, 2-Embedded scraper chain, 3-Vertical spiral hole, 4-U-shaped frame, 5-Side mounting plate, 6-Ring mounting plate, 7-Electric push rod, 8-Semi-circular groove, 9-Connecting plate, 10-Rubber sleeve, 11-Horizontal frame, 12-Fixed ring frame, 13-Moving ring frame, 14-Pressure roller. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. In the embodiments, unless otherwise specified, the technical means used are all conventional technical means in the art. Example

[0022] like Figure 1-2 The scraper chain tension adjustment device shown is located on one side of the top of the conveyor housing 1 and includes a U-shaped frame 4, an electric push rod 7 and a pressure roller 14; the electric push rod 7 is controlled by an external power source.

[0023] The bottom of the U-shaped frame 4 is provided with a side mounting plate 5, which is fixedly connected to the body of the conveyor seat box 1 by bolts; the top of the U-shaped frame 4 is provided with a top plate 8, and a semi-circular slot is provided in the middle of the top plate 8 for placing the electric push rod 7.

[0024] An annular plate 6 is fixedly provided on the cylinder body of the electric actuator 7, and the annular plate 6 is connected to the top plate 8 by bolts; the extended end of the electric actuator 7 is connected to a connecting plate 9 by bolts, and a pressure roller 14 is movably connected to the bottom of the connecting plate 9 by a crossbeam 11.

[0025] The surface of the pressure roller 14 is provided with a rubber sleeve 10.

[0026] The working principle of this embodiment is as follows:

[0027] After selecting an appropriate position in the conveyor housing 1, the U-shaped frame 4 is fixed with bolts. The position of the U-shaped frame 4 can be adjusted as needed. When the tension of the buried scraper chain 2 inside the conveyor housing 1 needs to be adjusted, the extension end of the electric push rod 7 is extended by external power control, thereby pushing the connecting plate 9 to press down on the cross frame 11. The pressure roller 14 set below the cross frame 11 presses against the buried scraper chain 2. After the rubber sleeve 10 set on the surface of the pressure roller 14 contacts the buried scraper chain 2, the buried scraper chain 2 between the sprockets can be subjected to downward pressure, thereby pressing the buried scraper chain 2 downward. Then, the extension end of the electric push rod 7 is retracted by external power control to pull the pressure roller 14 upward. After the buried scraper chain 2 loses the pressure applied by the pressure roller 14, it relaxes, thereby realizing the tension adjustment of the buried scraper chain 2 inside the buried scraper conveyor. Example

[0028] This embodiment is a further improvement based on Embodiment 1, as detailed below:

[0029] The connecting plate 9 has a vertical rotating hole 3 at one end, which is fixedly connected to the protruding end of the electric push rod 7 by bolts; the bottom of the connecting plate 9 away from the vertical rotating hole 3 has a horizontal frame 11, one end of which is fixedly connected to a fixed ring frame 12, and the other end is connected to a moving ring frame 13 by bolts. A pressure roller 14 is sleeved between the fixed ring frame 12 and the moving ring frame 13.

[0030] The connecting plate 9 is connected to the electric push rod 7 by bolts. When the pressure roller 14 needs to be replaced, only the connecting plate 9 needs to be removed. The two ends of the pressure roller 14 are connected by the fixed ring frame 12 and the moving ring frame 13. When the pressure roller 14 is worn and needs to be removed, the bolts can be unscrewed and the moving ring frame 13 can be removed to take out the pressure roller 14, which is convenient and quick.

[0031] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The protection scope of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of this utility model.

[0032] It should be specifically noted that the orientations or positional relationships indicated by terms such as "front," "rear," "left," "right," "up," and "down" are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use. These are merely for the purpose of describing the present invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

Claims

1. A scraper chain tension adjustment device for a buried scraper conveyor, disposed on one side of the top of the conveyor base box (1), characterized in that: Includes a U-shaped frame (4), an electric actuator (7), and a pressure roller (14); The bottom of the U-shaped frame (4) is provided with a side mounting plate (5), which is fixedly connected to the body of the conveyor seat box (1) by bolts; the top of the U-shaped frame (4) is provided with a top plate (8), and a semi-circular slot is provided in the middle of the top plate (8) for placing the electric push rod (7). An annular plate (6) is fixedly provided on the cylinder of the electric push rod (7), and the annular plate (6) is connected to the top plate (8) by bolts; the extended end of the electric push rod (7) is connected to a connecting plate (9) by bolts, and a pressure roller (14) is movably connected below the connecting plate (9) by a cross frame (11). The surface of the pressure roller (14) is provided with a rubber sleeve (10).

2. The scraper chain tension adjustment device for a buried scraper conveyor according to claim 1, characterized in that: The connecting plate (9) is provided with a vertical rotating hole (3) at one end, and the vertical rotating hole (3) is fixedly connected to the protruding end of the electric push rod (7) by bolts; a horizontal frame (11) is provided at the bottom of the end of the connecting plate (9) away from the vertical rotating hole (3), a fixed ring frame (12) is fixedly connected to one end of the horizontal frame (11), and a moving ring frame (13) is connected to the other end by bolts. A pressure roller (14) is sleeved between the fixed ring frame (12) and the moving ring frame (13).

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